Defeng Chen, MD
Internal Medicine Physician · Corpus Christi, TX
Defeng Chen, MD is an internal medicine physician with a practice address in Corpus Christi, Texas, and NPI 1689602112, issued on Jun 30, 2006. Check the license (Texas L7613, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Defeng Chen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- L7613 TX
229821 NY
Self-reported in NPPES; status is on the state search - Practice location
- 600 Elizabeth St, Corpus Christi, TX 78404
- Phone
- (361) 881-3000
- Enumerated
- Jun 30, 2006
- Record last updated
- Aug 14, 2022
- Medicaid ID
- 1657504-04 TX
- Medicare enrollment
- Enrolled (PECOS I20040429001190); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 600 Elizabeth St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Brittany AmayaSpeech-Language Pathologist1760313332
- Morgan ApostolStudent in an Organized Health Care Education/Training Program1952169666
Verify Defeng Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license L7613Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average internal medicine physician in 2024
955 Medicare Part D claims for 271 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 50 claims were for opioids.
Most prescribed
- Atorvastatin Calcium63 claims
- Pantoprazole Sodium49 claims
- Lisinopril36 claims
- Furosemide35 claims
- Losartan Potassium30 claims
- Amlodipine Besylate29 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Gulf Coast Physician Services, PLLCCorpus Christi, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Defeng Chen among 9,175 internal medicine physician records in Texas
Defeng Chen, MD is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1983 · median 2004 among the 6,088 with a school on file
- Record last updated2022 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
99 internal medicine physician records list a practice address in Corpus Christi
They are 99 of the 5,600 NPPES records with a practice address in Corpus Christi, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Corpus Christi → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Raymond Acebo, MDCorpus Christi, TX 784041457321218
- Anthony Asistido, M.D.Corpus Christi, TX 784041154339380
- Paul Bongat, D.O.Corpus Christi, TX 784041245682020
- Cecil Bourne, M.D.Corpus Christi, TX 784041063414134
- Scott Krall, MDCorpus Christi, TX 784041154389161
- Suresh Kulkarni, M.D.Corpus Christi, TX 784041134187347
- Jacqueline Phillips, D.O.Corpus Christi, TX 784041811204928
- Delia Quisenberry, M.D.Corpus Christi, TX 784041417964255
Common questions
What is Defeng Chen, MD's NPI number?
Defeng Chen, MD's National Provider Identifier (NPI) is 1689602112, issued on Jun 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Defeng Chen, MD located?
The NPPES record lists a practice address at 600 Elizabeth St, Corpus Christi, TX, 78404. Phone: (361) 881-3000. Providers update this record themselves, so call before visiting.
How can I verify Defeng Chen, MD's license?
NPPES lists Texas license number L7613, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Defeng Chen, MD prescribe under Medicare Part D?
In 2024, Defeng Chen, MD had 955 Medicare Part D claims for 271 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.